Validate the sensitivity and specificity of the Respirio Flu Test and the eLab Flu Test in detecting Influenza B as compared to the gold standard for detection, Reverse Transcriptase Polymerase Chain Reaction (RT-PCR); Evaluate the correct interpretation of the Respirio Flu Test by subjects with influenza-like symptoms; Evaluate the subjects' satisfaction with the convenience, comfort and ease of use of the Respirio Flu Test.